Université de Neuchâtel

Real-time GNSS software receiver optimized for general purpose microprocessors

Baracchi-Frei, Marcel ; Farine, Pierre-André (Dir.) ; Botteron, Cyril (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2010.

A satellite navigation system (like GPS) allows an user to determine its own position everywhere and anytime on Earth. The process of calculating the position is relatively simple (use of trilateration). The main issue is to obtain and decode the transmitted information and to estimate accurately the Time Of Arrival (TOA) of the signals as they lie below the thermal noise floor. A technique...

Université de Neuchâtel

A/D converters architectures based on cascaded incremental and cyclic structures

Rossi, Luca ; Farine, Pierre-André (Dir.) ; Tanner, Steve (Codir.) ; Nys, Olivier (Codir.) ; Willemin, Michel (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2009.

Characteristics of converters are extremely wide from Gigasamples to a few samples per second for bandwidth and resolution variation from a few bits to more than 20 bits. In the field of high resolution, converters architecture are mostly based on oversampling converters. Delta-sigma converter is a common implementation of this architecture. However, in certain applications, this converter is not...

Université de Neuchâtel

Design of low phase noise low power CMOS phase locked loops

Shi, Xintian ; Farine, Pierre-André (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2008 ; Th. 2085.

Phase locked loop (PLL) is one of the most critical devices in modern electronic systems. PLLs are widely used as clock generator or frequency synthesis in communication systems, computers, radio and other electronic applications. Phase noise represents the phase variations of a PLL output signal and is the most important characteristic of PLLs because it reflects the stability of PLL systems....

Université de Neuchâtel

Analysis of low power, low data rate ultra wideband impulse radio systems

Merz, Roman ; Farine, Pierre-André (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2009 ; Th.2071.

During the last decade, ultra wideband (UWB) systems gained a large interest in the scientific world because of their suitability to realize among others communication systems with tremendous data rates and accurate indoor positioning and location systems. As a differing technology compared to classical narrowband radio transmission systems, UWB requires some novel approaches. Well established...

Université de Neuchâtel

Acquisition system and signal processing for large-scale high-resolution microelectrode arrays neurointerfaces

Imfeld, Kilian ; Farine, Pierre-André (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2008 ; Th. 2058.

Microelectrode arrays (MEAs) - based neuronal interfaces allow monitoring and stimulating neuronalnetworks both in vivo and in vitro. In vitro methodology is widely used to study and model at intermediate complexity learning and memory processes within a large neuronal network. Commercially available MEA platforms for in vitro electrophysiology allow recording from...

Université de Neuchâtel

Leakage aware digital design optimization for minimal total power consumption in nanometer CMOS technologies

Schuster, Christian ; Farine, Pierre-André (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2007 ; 1927.

Starting from deep submicron technologies (< 0.13μm), and even stronger in nanometer technologies, static power consumption, due to leaky “off” transistors, is becoming a non-negligible contributor to the total power dissipation. Under this condition, the total power optimization problem changes considerably. The high parallelization approach commonly used today to increase performances,...